/*
 * Copyright (c) 2023 New Vector Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.element.android.appnav.loggedin

import app.cash.molecule.RecompositionMode
import app.cash.molecule.moleculeFlow
import app.cash.turbine.test
import com.google.common.truth.Truth.assertThat
import io.element.android.features.networkmonitor.api.NetworkStatus
import io.element.android.features.networkmonitor.test.FakeNetworkMonitor
import io.element.android.libraries.matrix.api.MatrixClient
import io.element.android.libraries.matrix.api.roomlist.RoomListService
import io.element.android.libraries.matrix.test.FakeMatrixClient
import io.element.android.libraries.matrix.test.roomlist.FakeRoomListService
import io.element.android.libraries.push.api.PushService
import io.element.android.libraries.pushproviders.api.Distributor
import io.element.android.libraries.pushproviders.api.PushProvider
import io.element.android.tests.testutils.WarmUpRule
import io.element.android.tests.testutils.consumeItemsUntilPredicate
import kotlinx.coroutines.test.runTest
import org.junit.Rule
import org.junit.Test

class LoggedInPresenterTest {

    @get:Rule
    val warmUpRule = WarmUpRule()

    @Test
    fun `present - initial state`() = runTest {
        val presenter = createPresenter()
        moleculeFlow(RecompositionMode.Immediate) {
            presenter.present()
        }.test {
            val initialState = awaitItem()
            assertThat(initialState.showSyncSpinner).isFalse()
        }
    }

    @Test
    fun `present - show sync spinner`() = runTest {
        val roomListService = FakeRoomListService()
        val presenter = createPresenter(roomListService, NetworkStatus.Online)
        moleculeFlow(RecompositionMode.Immediate) {
            presenter.present()
        }.test {
            val initialState = awaitItem()
            assertThat(initialState.showSyncSpinner).isFalse()
            consumeItemsUntilPredicate { it.showSyncSpinner }
            roomListService.postState(RoomListService.State.Running)
            consumeItemsUntilPredicate { !it.showSyncSpinner }
        }
    }

    private fun createPresenter(
        roomListService: RoomListService = FakeRoomListService(),
        networkStatus: NetworkStatus = NetworkStatus.Offline
    ): LoggedInPresenter {
        return LoggedInPresenter(
            matrixClient = FakeMatrixClient(roomListService = roomListService),
            networkMonitor = FakeNetworkMonitor(networkStatus),
            pushService = object : PushService {
                override fun notificationStyleChanged() {
                }

                override fun getAvailablePushProviders(): List<PushProvider> {
                    return emptyList()
                }

                override suspend fun registerWith(matrixClient: MatrixClient, pushProvider: PushProvider, distributor: Distributor) {
                }

                override suspend fun testPush() {
                }
            }
        )
    }
}
